I have Velocity A23 rims with 28 spokes front and 32 rear, with over 10,000 miles on them. I only weighed 170 at my maximum but currently 155 on a light gravity day. Those rims weigh about 450 grams which is quite light. If I weighed more than my maximum I would be looking for a heavier rim, say 480 to 500 grams.